VariCAD – Creating a Pitch Circles together with Center Lines
You can easily create a pitch circle, optionally with center lines and individual radial axes of each circle located at pitch diameter. To create such axes, right-click a circle located at pitch diameter, select pitch circle creation and then, select optional creation of center lines and all radial axes. Pitch circle is created always. If 2D objects are created from 3D view, pitch-circle and axes dimensioning is automatically updatable after changes in 3D.